Air and steam bag for vulcanizers



c. e, ANDREWS.

AIR AND STEAM BAG FOR VULCANIZERS.

APPLICATION man 1AN.21, 1922.

Patented Sept. 5, 1922i.

Sept. 5, loghi.

` rare ppi;

ene'enns 3e. ennnnvvs,

QF DENVER, 'LORADQ are, ann ernaar rae non vnroam21ans,,`

Application.led.Ilannary @1,1922. Serial-lilo. 530,974.

To aZZ whom. it' muy cmwern' l i Be it known that -l. CHARnns-G. ANDREWS;

a citizen of the United Statesl of America,

residing at Denver, in the county ot lenver `and State of Colorado, have invented certain new and "useful Improvements in Air and Steam Bags for vlnlc'ainlzers, of v'vhich the following is a specii'cation..v

rlhe invention relates to new `and useful improvements in air and'steani bag@ parJ ticularly et the type used by vuleanizers for distending a tube or casing in a vulcanizling machine' for.l pneumatic tires...

. bursting.

have become hard andrgid irom'use.

" lig. el isl a cross section through the cor`n- A further object of the invention 'is tp allow Vthe renewal of the airA or steam-oontaining portion of the bag Without the necessity of renewing the complete' device.

A still further object of the invention'reysidesin the' detail' construction thereof,

whereby the Whole device is securely held 'together Without the use of bolts, screws or rivets. This adds to' itss'implicity bothl in use and in'nia'nufacture.

With these and other objects, which Will' be appa-.rent from the following description, view the invention will now be described in detail, reference being had to the accompanying drawing forming va part hereof..

.lnthe drawing:

Figure l is a side elevation of an, air container such as may be used in the device..

Fig. 2 is a longitudinal section through a steam container such as may be 4used in thel device. y

Fig. 3 is an enlarged elevation.,` partly in section, of the end portion of the complete- `device, showing how the various parts of the device are held in place. The sectional portion of this view is taken on the line33, Fi 5. v

plete device taken on the line if-4, Fig. 6.

.Fig isan end vievv of thecomplete device.

Fig. 6 is a side elevation .of the complete device Withia steam' container in place.

llhen .using an air contalnen' the supply v hose alone would show .at onetafin'er and the numeral endA of the device,the other end being blank.

.C'orresponding and: like Vparts are referred .to 1n the' following description andfindicated. in 'all vviews of ,the accompanying drawing by the samerefe'rence characters.'

Let the numeral 10 l ll al steam container, either of which may be used inV the device according` the Work to be done. The steam container -lldiii'ers from the air con* indicate an air con-n tainerflO .only 'in that it Ais provided with a vsteam-aud "condensate outlet pipe 12. The i `inner end of outlet pipe 12 lies normally at the lowest point "oli, the container, as indi" as to 'allow the pressurel cated in Fig. 2, so

of the steam to force out all of the conl 'densate which may accumulate therein. The inner end of the outlet pipe l12' is provided with a `nipple 13,'thevfeight of which assists in holding the outlet steam is admitted' through an inlet pipe 14. `Air container l0 is provided with an air inlet pipe 15only. l

'at the low point. The

-The Wallv construction of vthe containers 'lO'and 1l is believed to be new and novel. .Referring to Figs.v 3 and. 4, an' inner 'layer lloffvery pliable, slow-curing rubber is surrounded by a single layer of cords 17, over which a' second and thinner layer of Asimilar rubber 18'is placed. Thethreelayers beilxlig formed into a single homogeneous Wa The cords 17'are placed diagonal to the horizontal axis of the container, as indicated inv Fig. 3; This allows the tube to expand freely in .a radial direction at the expense oa slight' shortening in an axial direction. The cords however bind the 'Whole together andv prevent the b urstin of the tube should it be inflated outside o its casing. The containers at present on the .market are provided with either a fabric or a cross-cord binder which has very little elasticity and allows but a very slight en "pension of thefbag.

i .In use, the containers v 10 7The. .edges fol *his lapped joint al.-

and 11 are placedl Within a' easing '19, yofthe ordinary. fabric and rubber composition, which. in itself like has no elasticity. however but'js d -as'indi'ea'ted in 11o as freely as lem, ie:

The ieppedi joint 20 is preteeiefi iii; e heevy strip ei fabric and iubhei 219 heaped i0 eoniorm ie the iimer peiie of e pneumetie eine. Steig) 21 eis-0 femmes iiie iieceeeityei:

ehe si'iepe of me tiie emi since me Goni/einem; are always kept pvifectiy eireuier, uneven strains ere avoided and ieiigei life assured.,

The ends of i'ie casing 19 :we ziiiied over metal emi .Hugs 22 shown. ai 23. Emi, pings 22 pi'o'videci wiiii iieiiew ihreeded nippiee Q4 which projeei; iirmagh cup shaped end nimes; end we provided Wiiii. mit@ Sie, he edges ef end. plugs :22 emi the inner euppe fece of' emi pie'zee 2 are beveiei as'indiceiefi ai F55/ iigiiening mit 26, emi piu '22 is drawn im@ the cupped sim )ed depression in end plete 25 and the en oi @sing i9 is i'miy damped in piece es is cieaii'iy shown iii Fig. fi.

The ends of siiip 2i liso eizmiped be. weeii the beveied edges ei end pings .29: and end piaiee 25 shown ai QS, anni in midi tion e beek 29 formed en the end' plug :22 projects iiawugii iiieeeeug i9 engi @he stiigi. 219 eseisting in 4drewimg iixeie inw end pie'ie 25 and iwciing them iii piece. The pipes l2, le and, 15 pese hz'ough the iieiew eeniei* iii use, i, is noi :ueceseeiy to disessembie ihe emi piae'e in oi'iieite insei't e Vnew eii oi* steam container. The strip 21 is simply iii'ted ai', ies mid point, @ne @eps lQiepieedl apart and the eenteiiiei insei'eai. e

The @aging serves to protect 'she pi'eseuie emi-mine? emi 'iievent ii biowiiig mi iii'oligii u'iipioteetei'i epeiiiiige in the mii eenige? emi eis@ serves to tie the end pieies iop/either end pi'eveni; eiidwise exipeneion.

ming time described my invention, whe@ i Gleim end. desire iseeecuie by Lem-ers Peei. in eii: eed steam beg eempi'isiiig e, peeesure ein-meiner K'iii'er' m' @ber eiiieeie `einetei oi' *eriig indem expiiisibie seeing *edepi/ed; ie 'miniem `eend presen/re @stemmen i pressure eoiiize'iner;

' pension.; e. siip ,eenmmei adapted to be contained: Within Geni causing provided Weth miei and emi-ei,

"W y "'Cim BST-TV1`L Biliif C? M1 meeeiiei .mixing e smgie ayer @I cords imbefieei im the weiis eiiereef, Said nerds beiiig diepeeed et; in angie iw the exis emi diehe @meiner for the @impose il An sur 'sind Steam beg comprising e.

@fessure com-einer; e veasing; siiiroimding seici centaine?, said easing being pi'ovideii Witheii expansion joim to ziiiow i'iifiiai ei;- -pensieng rigid emi. members dosing the ends 0i* seid easing; means for cieiiiping seid caeing w seid emi membeis.

3. Aie, en* and steam. bag eemprisiiig e a. casing suii'eiiiidiiig said wiiiaiiiei7 -seid casing being provided wih en expansion joint to allow i'efiiei eje .shaped to conform to the nnei' 'amateur oi e pneumeic, tire 'emi adapted to cove? said expeiisien joint; igii f emi membei's eiesiiig the emis oiseifi eeeiiig; means for clamping seni casing emi seid sii-ip fm seid end membere.

li. A pressure. @me im' vuieenieeile @om elastic an@ e singie layer ai acide imiieldei Vin the weiie iheiee seid ceidfs 1.9"

pese@ if rubber 'me other posed'eemi angie te ihe wie emidiamei ei seid; Gere im ehe puipose o eiiei ireciiei expensem.

5; air end eieem beg for sfuiceuizei'e comprising a. iexbie easing provideei en 'expansion joint en eiiowf radial expeneien; iigici end members dosing the @ms seid easing; melena im* eiempiiig seifi casing to Seid. end members emi e pipes, Said 'outiet pipe being iiexibie :emi adapted to extend Within seid steam wie teimeiand. iie et the lowesi point; theiree, 

